Share-Based Compensation Plans And Other Incentive Plans (Schedule Of Compensation Expense) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	$ 43	$ 39
Tax benefit	13	11
Share-based compensation expense, net of tax	30	28
Decrease in basic earnings per share	$ (0.10)	$ (0.08)
Decrease in diluted earnings per share	$ (0.09)	$ (0.08)
Share-based compensation expense in discontinued operations	0	9
Cost Of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	6	3
Selling, General And Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	26	29
Research And Development Expenditures [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	$ 11	$ 7